Ingredients:

500 gms prawns, cleaned

2 onions, chopped

1 tomato, chopped

2 green chillies, slit

1 tbsp ginger-garlic paste

2-3 tsp chilli powder

1/2-1 tsp pepper powder

1 tsp turmeric powder

1/2 tsp garam masala

curry leaves

oil

salt

Preparation:

1. Marinate prawns with 1 1/2 tsp chilli powder, 1/2 tsp turmeric powder and salt for 30 minutes.
2. Heat a pan , add the oil and shallow fry the marinated prawns for 3-4 minutes and keep aside.
3. In the same oil, add chopped onions and saute till transparent. Add ginger-garlic paste,green chillies and curry leaves and saute until raw smell disappears.
4. Add chopped tomatoes and saute well until the tomatoes becomes soft.
5. Now add 1 tsp chilli powder, 1/2-1 tsp pepper powder, 1/2 tsp turmeric powder, 1/2 tsp garam masala and salt. Stir fry for few seconds. 
6. Add the fried prawns and mix well. Cook for few minutes. Adjust the spice level according to your taste...Switch off and serve hot..